A system has two charges, \(q_\mathrm{A} = 2.5 \times 10^{-7}~\text{C}\) and \(q_\mathrm{B} = -2.5 \times 10^{-7}~\text{C}\), is located at points \(\mathrm{A}\): \((0,0,-15~\text{cm})\) and \(\mathrm{B}\): \((0,0,+15~\text{cm})\) respectively. The electric dipole moment of the system is:
1. |
\(7.5\times 10^{-8}~\text{C-m}\) (along negative z-axis) |
2. |
\(8.5\times 10^{-8}~\text{C-m}\) (along positive z-axis) |
3. |
\(5.5\times 10^{-8}~\text{C-m}\) (along positive z-axis) |
4. |
\(3.5\times 10^{-8}~\text{C-m}\) (along negative z-axis) |